CN110082848A - Colored filter and liquid crystal display device including colored filter - Google Patents
Colored filter and liquid crystal display device including colored filter Download PDFInfo
- Publication number
- CN110082848A CN110082848A CN201810076350.4A CN201810076350A CN110082848A CN 110082848 A CN110082848 A CN 110082848A CN 201810076350 A CN201810076350 A CN 201810076350A CN 110082848 A CN110082848 A CN 110082848A
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- China
- Prior art keywords
- colored filter
- light diffusing
- diffusing particles
- layer
- resin
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/201—Filters in the form of arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/206—Filters comprising particles embedded in a solid matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
Abstract
The invention discloses a kind of colored filter and including the liquid crystal display device of colored filter, colored filter, including transparent substrate, shading array and chromatic filter layer.Shading array is set on transparent substrate, and shading array has multiple openings.These openings define multiple sub-pixel areas.Chromatic filter layer covers sub-pixel area, and chromatic filter layer is doped with multiple light diffusing particles.Colored filter of the invention and the liquid crystal display device including colored filter, by, doped with multiple light diffusing particles, scattering the light of incident colored filter, to achieve the effect that prevent dazzle in chromatic filter layer.
Description
Technical field
The present invention relates to a kind of colored filter and about the liquid crystal display device including colored filter.
Background technique
" dazzle " refers to the visual discomfort due to caused by the brightness being suitable for much larger than eyes in the visual field or reduces object
The visual phenomenon of body visibility.Dazzle may be because outdoor strong light on eyeglass or other surfaces caused by reflecting.Well known
It is that, in driving or outdoor sports, dazzle may cause a degree of danger.Traditionally, automobile-used in order to solve glare problem
The polarizer that panel mostly uses anti-glare (anti-glare) to handle.Polarisation plate surface through anti-glare treatment has and can dissipate light
The concaveconvex structure penetrated, to prevent dazzle.
It is if the size distribution of concaveconvex structure is inconsistent, the light for issuing display is irregular through thus concaveconvex structure
Scattering generates apparent snowflake line so that certain points of display have the problems such as light and shade is uneven, image definition is fuzzy
(sparkling).Traditionally, the mode for optimizing this problem is handled by the anti-glare surface of fine, to reach uniform
Concaveconvex structure size distribution, and then reach atomizing effect to improve phenomena such as light and shade is uneven, image definition is fuzzy.
It will be so that production cost remains high however, the anti-glare surface of fine is used to handle.It can be seen that above-mentioned existing
Some modes, it is clear that there are still inconvenient and defects, and have much room for improvement.To solve the above-mentioned problems, related fields there's no one who doesn't or isn't spends all the heart
Think to seek solution, but does not develop solution appropriate yet for a long time.
Summary of the invention
The colored filter of manufacturing cost can be substantially reduced the purpose of the present invention is to provide one kind and is filtered including colour
The liquid crystal display device of mating plate.
A purpose of the invention is to provide a kind of colored filter, including transparent substrate, shading array and colorized optical filtering
Layer.Shading array is set on transparent substrate, and shading array has multiple openings.Opening defines multiple sub-pixel areas.It is color
Color filtering optical layer covers sub-pixel area, and chromatic filter layer is doped with multiple light diffusing particles.
In certain embodiments of the present invention, colored filter further comprises covering shading array and chromatic filter layer
Flatness layer, and flatness layer is doped with multiple light diffusing particles.
In certain embodiments of the present invention, the doping concentration of the light diffusing particles of chromatic filter layer is 2 to 45 weight hundred
Divide ratio.
It is a further object of the present invention to provide a kind of colored filters, including transparent substrate, shading array, colorized optical filtering
Layer and flatness layer.Shading array is set on transparent substrate, and shading array has multiple openings.Opening defines multiple
Sub-pixel area.Chromatic filter layer covers sub-pixel area.Flatness layer covers shading array and chromatic filter layer, and flatness layer doped with
Multiple light diffusing particles.
In certain embodiments of the present invention, the doping concentration of the light diffusing particles of flatness layer is 2 to 45 weight percent.
In certain embodiments of the present invention, the partial size of light diffusing particles is 0.1 to 6 micron.
In certain embodiments of the present invention, light diffusing particles include resin or inorganic material.
In certain embodiments of the present invention, resin includes polysulfones, polyimides, polyacrylate or combinations of the above.
In certain embodiments of the present invention, inorganic material includes silica, titanium dioxide or combinations of the above.
It is yet another object of the invention to provide a kind of liquid crystal display device, including any one of aforementioned colored filter, right
To substrate and the liquid crystal layer being set between colored filter and opposite substrate.
Compared with prior art, the present invention has the effect of the beneficial effect for preventing dazzle good and also reducing manufacturing cost.
Detailed description of the invention
Reader is after having read a specific embodiment of the invention referring to attached drawing, it will more clearly understands of the invention
Various aspects.Wherein,
Fig. 1 is the schematic top plan view of a part of the colored filter of each embodiment of the present invention.
Fig. 2 is the diagrammatic cross-section of the colored filter of first embodiment of the invention.
Fig. 3 is the diagrammatic cross-section of the colored filter of second embodiment of the invention.
Fig. 4 is the diagrammatic cross-section of the colored filter of third embodiment of the invention.
Fig. 5 is the diagrammatic cross-section of the liquid crystal display device of an embodiment of the present invention.
Specific embodiment
In order to keep the narration of this disclosure more detailed with it is complete, below for embodiments of the present invention and specific
Embodiment proposes illustrative description；But this not implements or uses the unique forms of the specific embodiment of the invention.Following institute
Disclosed each embodiment can be combined with each other or replace in the case of beneficial, can also add other implementations in one embodiment
Example, and without further record or explanation.In the following description, many specific details be will be described in detail so that reader can fill
Sub-argument solution embodiment below.However, the embodiment of the present invention can be practiced without these specific details.
Hereby by embodiments of the present invention, detailed description are as follows, but the present invention is not limited to scope of embodiments.
Referring to Fig. 1 and Fig. 2.Fig. 1 is the vertical view of a part of the colored filter 100 of each embodiment of the present invention
Schematic diagram, and Fig. 2 be first embodiment of the invention colored filter 100 along Fig. 1 line A-A ' diagrammatic cross-section.It is color
Colo(u)r filter 100 includes transparent substrate 110, shading array 120 and chromatic filter layer 130.Shading array 120 is set to
On bright substrate 110, and shading array 120 has multiple openings 121.These openings 121 define multiple sub-pixel areas 122.
Although should be appreciated that multiple openings 121 are rectangle depicted in figure 1, and the arrangement that is in alignment with each other between opening 121,
The shape and Rankine-Hugoniot relations of opening 121 are not limited thereto.For example, the Rankine-Hugoniot relations of opening 121 can also be Mosaic style or three
Angle arrangement type.Chromatic filter layer 130 covers sub-pixel area 122 doped with multiple light diffusing particles 131.By adulterating light
Scattering particles 131 is in chromatic filter layer 130, and the light of incident colored filter 100 can be scattered, so that reaching prevents dazzle
Effect.Sub-pixel area 122 is covered about chromatic filter layer 130, specifically, chromatic filter layer 130 inserts these openings
121, and cover a part of shading array 120.However, although the thickness H1 of chromatic filter layer 130 is big depicted in figure 2
In the thickness H2 of shading array 120, but in some other embodiments, the thickness H1 of chromatic filter layer 130 can be equal to or small
In the thickness H2 of shading array 120.Therefore, in these embodiments, chromatic filter layer 130 does not cover shading array 120
A part, but only filling opening 121.
In some embodiments, transparent substrate 110 includes glass, quartz or flexible transparent polymer material,
But not limited to this.
In some embodiments, shading array 120 includes crome metal or the resin for being dispersed with light screening material, but not with this
It is limited.It can be mentioned, for example carbon particulate, inorganic pigment, organic pigments etc. for the light screening material.It can be mentioned, for example fourths for the resin
Urea formaldehyde, haloflex, polyvinyl chloride, polyurethane system resin, phenol resin, polyester resin, acrylic resin, alcohol
Acid resin, styrene resin, polyamide, rubber series resin, epoxy resin, polyimide resin etc..It should be understood that gold
The resin for belonging to chromium and being dispersed with light screening material has impermeable light characteristic, therefore includes crome metal or the resin for being dispersed with light screening material
Shading array 120 also have impermeable light characteristic.In some embodiments, a layer light shield layer can be initially formed and (such as be dispersed with screening
The resin layer of luminescent material) on transparent substrate 110, reusing photolithography processes formation shading array 120, to define time picture
Plain area 122.
In some embodiments, chromatic filter layer 130 includes the resin for being dispersed with colorant, and but not limited to this.Institute
Stating colorant, it can be mentioned, for example assorted (such as red, green or blue) inorganic pigment, organic pigments etc..The resin can be enumerated
Such as butyral resin, haloflex, polyvinyl chloride, polyurethane system resin, phenol resin, polyester resin, acrylic acid series
Resin, alkyd resin, styrene resin, polyamide, rubber series resin, epoxy resin, polyimide resin etc..Colour filter
Photosphere 130 can be made of the resin of two or more dispersion different colorants.For example, the part of chromatic filter layer 130
130a, 130b and 130c can be respectively by being dispersed with the resin of red pigment, the resin for being dispersed with viridine green and dispersion
It is made of the resin of blue pigment.Only allow the light of specific wavelength saturating it should be understood that the resin for being dispersed with colorant has
The characteristic penetrated, therefore the chromatic filter layer 130 of the resin including being dispersed with colorant also characteristic having the same, to reach filter
The effect of light.For example, chromatic filter layer 130 part 130a, 130b and 130c respectively by being dispersed with the tree of red pigment
It rouge, the resin for being dispersed with viridine green and is dispersed in embodiment composed by the resin of blue pigment, only red wavelength
Energy transmissive cross part 130a, the energy transmissive of green wavelength crosses part 130b and the energy transmissive of blue wavelength crosses portion
Divide 130c.
In some embodiments, photolithography processes or printing technology shape can be utilized after forming shading array 120
At the chromatic filter layer 130 doped with light diffusing particles 131.For example, will include light diffusing particles 131, red pigment, Yi Jishu
The constituent of rouge is coated on transparent substrate 110 and shading array 120 and drying is to form red resin layer, is then exposed
And it is developed to the RED sector of chromatic filter layer 130.Then, remaining color of chromatic filter layer 130 is formed in the same manner
Color part.Alternatively, in other embodiment, the colorized optical filtering doped with light diffusing particles 131 can also be initially formed
Layer 130, re-forms shading array 120.
As described above, the thickness H1 of chromatic filter layer 130 can greater than, equal to or less than shading array 120 thickness H2.
In thickness H1 and the different embodiment of thickness H2, colored filter 100 can further comprise flatness layer 140.Flatness layer 140
Shading array 120 and chromatic filter layer 130 are covered, to provide a burnishing surface.In some embodiments, flatness layer 140
Transparent insulation material including such as resin, but not limited to this.It can be mentioned, for example butyral resins, chlorinated polyethylene for the resin
Alkene, polyvinyl chloride, polyurethane system resin, phenol resin, polyester resin, acrylic resin, alkyd resin, styrene resin
Rouge, polyamide, rubber series resin, epoxy resin, polyimide resin etc..
Referring to figure 3..Fig. 3 be second embodiment of the invention colored filter 100 along Fig. 1 line A-A ' section
Schematic diagram.The revealed colored filter 100 of Fig. 3 is revealed similar to Fig. 2, difference Fig. 3 colored filter 100 it is flat
Smooth layer 140 is doped with light diffusing particles 141, and chromatic filter layer 130 is then without doping light diffusing particles 131.In some implementations
In mode, the constituent comprising light diffusing particles 141 and resin can be coated on shading array 120 and chromatic filter layer 130
To form the flatness layer 140 doped with light diffusing particles 141.It should be understood that in flatness layer 140 doped with light diffusing particles
141, and in the case that chromatic filter layer 130 is undoped with light diffusing particles, the light of incident colored filter 100 can also be scattered,
To achieve the effect that prevent dazzle.Therefore, for those skilled in the art when energy is according to needed for technique, light diffusing particles are mixed in selection
It is miscellaneous in chromatic filter layer 130 or in flatness layer 140.
Referring to figure 4..Fig. 4 be third embodiment of the invention colored filter 100 along Fig. 1 line A-A ' section
Schematic diagram.The revealed colored filter 100 of Fig. 4 is revealed similar to Fig. 2, difference Fig. 4 colored filter 100 it is flat
Smooth layer 140 is also doped with light diffusing particles 141.Forming method about the chromatic filter layer 130 doped with light diffusing particles 131
It is identical as method described in Fig. 2, and institute in the forming method and Fig. 3 about the flatness layer 140 doped with light diffusing particles 141
The method stated is identical, therefore herein without adding to repeat.It should be understood that in chromatic filter layer 130 doped with light diffusing particles
131, and in the case where flatness layer 140 is also doped with light diffusing particles 141, the light of incident colored filter 100 can be double by this
Layer anti-glare structural scattering, to achieve the effect that prevent dazzle.That is, in some specific situations (such as colored filter
The relatively thin situation of mating plate), it can be by forming two layers all doped with the double-deck anti-glare structure of light diffusing particles, to increase incidence
Light diffusing particles number in light path is more effectively to scatter incident light.
In some embodiments, light diffusing particles 131 and light diffusing particles 141 include resin or inorganic material.It is described
Resin is, for example, polysulfones, polyimides, polyacrylate or combinations of the above.The inorganic material is, for example, silica, two
Titanium oxide or combinations of the above.In some embodiments, the partial size of light diffusing particles 131 and light diffusing particles 141 be 0.1 to
6 microns, for example, 0.3 micron, 0.5 micron, 1 micron, 2 microns, 3 microns, 4 microns or 5 microns.So-called " partial size " refers to quite
Sphere diameter has the ball diameter with particle same volume, particularly refers to through partial size measured by laser diffraction/scattering method.If
When the partial size of light diffusing particles 131 or light diffusing particles 141 is greater than 6 microns, the light transmittance for being doped layer may be will affect, but work as
When the partial size of light diffusing particles 131 or light diffusing particles 141 is less than 0.1 micron, light diffusing particles 131 or light diffusing particles 141
It may reunite and can not effectively disperse.In some embodiments, the doping of the light diffusing particles 131 of chromatic filter layer 130
The doping concentration of concentration and the light diffusing particles of flatness layer 140 141 be 2 to 45 weight percent, for example, 5 weight percent,
10 weight percent, 15 weight percent, 20 weight percent, 25 weight percent, 30 weight percent, 35 weight percent
Or 40 weight percent.If the doping concentration of the light diffusing particles 131 of chromatic filter layer 130 or the light of flatness layer 140 scatter grain
When the doping concentration of son 141 is greater than 45 weight percent, precipitating may be generated and influence to be incorporated the light transmittance of diamicton or be incorporated
The characteristic of diamicton, but when the doping concentration of the light diffusing particles 131 of chromatic filter layer 130 or the light diffusing particles of flatness layer 140
When 141 doping concentration is less than 2 weight percent, possibly can not effectively scatter incident colored filter 100 light and can not
Achieve the effect that anti-glare.
Referring to figure 5..Fig. 5 is the diagrammatic cross-section of the liquid crystal display device 10 of an embodiment of the present invention.Liquid crystal display
Device 10 includes colored filter 100, opposite substrate 300 and is set between colored filter 100 and opposite substrate 300
Liquid crystal layer 200.Although should be appreciated that the chromatic filter layer 130 and flatness layer of colored filter 100 depicted in figure 5
140 all doped with light diffusing particles, but in some other embodiments, can also only have in chromatic filter layer 130 or flatness layer 140
One doped with light diffusing particles.In some embodiments, the driving method of liquid crystal display device 10 is not particularly limited,
Driving method used in usual liquid crystal display device can be used.As above-mentioned driving method, it can be mentioned, for example twisted nematics
It is (Twisted Nematic, TN) mode, in-plane (In-Plane Switching, IPS) mode, optical compensation curved
(optically compensated bend, OCB) mode and multi-zone vertical alignment nematic (Multi-Domain Vertical
Alignment, MVA) mode etc..Therefore, it as opposite substrate 300, can suitably be selected according to used driving method.
In turn, as the liquid crystal for constituting liquid crystal layer 200, the various of dielectric anisotropic can also be used according to used driving method
Liquid crystal known in the field and its mixture.It should be understood that liquid crystal display device 10 of the invention is not limited to figure
5 discribed structures.Specifically, the structure of liquid crystal display device 10 of the invention can be any well known using colored filter
The LCD device structure of mating plate.In addition, as described above, in the prior art, using the polarizer (table through anti-glare treatment
Face has can be by concaveconvex structure that light scatters) prevent dazzle.However, using optical cement (optical clear adhesive,
OCA) or optical resin (Optical Clear Resin, OCR) is bonded one in these polarisation plate surfaces through anti-glare treatment
When other a little layer (such as touch control electrode layer or cover glass), the concaveconvex structure in polarisation plate surface is by optical cement or optical resin
Fill up and influence the effect of light scattering.In other words, if panel is bonded (Direct Bonding, DB) entirely, then originally
It will be not present by the atomizing effect of anti-glare treatment, and lead to apparent snowflake line.But the liquid disclosed in this disclosure
In crystal device, dazzle is prevented using the light diffusing particles adulterated in colored filter, therefore is not had above-mentioned because making
Other layers are bonded with optical cement or optical resin and influence the situation of light scattering effect.
By foregoing invention embodiment it is found that at least one of chromatic filter layer or flatness layer of colored filter doped with
Light diffusing particles scatter the light of incident colored filter, to achieve the effect that prevent dazzle.Therefore, it compares
In prior art, the technique for carrying out anti-glare treatment on polarizer is omitted, saves manufacturing cost.Also, use optical cement
Or optical resin carries out colored filter and when being bonded, will not influence the effect of anti-glare with other layers.
Although the present invention is disclosed as above with embodiment, other embodiments are also possible to.Therefore, claim
Spirit and scope is not limited to narration contained by embodiment herein.
Any those skilled in the art can be illustrated, without departing from the spirit and scope of the present invention, various when that can make
Change and retouch, therefore protection scope of the present invention is subject to be defined depending on claim.
Claims (12)
1. a kind of colored filter characterized by comprising
Transparent substrate；
Shading array is set on the transparent substrate, wherein the shading array has multiple openings, the multiple opening is fixed
Justice goes out multiple sub-pixel areas；And
Chromatic filter layer covers the multiple sub-pixel area, and the chromatic filter layer is doped with multiple light diffusing particles.
2. colored filter as described in claim 1, which is characterized in that further comprise covering the shading array and described
The flatness layer of chromatic filter layer, and the flatness layer is doped with multiple light diffusing particles.
3. colored filter as claimed in claim 1 or 2, which is characterized in that the light of the chromatic filter layer scatters grain
The doping concentration of son is 2 to 45 weight percent.
4. colored filter as claimed in claim 1 or 2, which is characterized in that the partial size of the light diffusing particles is 0.1 to 6
Micron.
5. colored filter as claimed in claim 1 or 2, which is characterized in that the light diffusing particles include resin or inorganic
Material.
6. a kind of colored filter characterized by comprising
Transparent substrate；
Shading array is set on the transparent substrate, wherein the shading array has multiple openings, the multiple opening is fixed
Justice goes out multiple sub-pixel areas；
Chromatic filter layer covers the multiple sub-pixel area；And
Flatness layer covers the shading array and the chromatic filter layer, and the flatness layer is doped with multiple light diffusing particles.
7. colored filter as claimed in claim 6, which is characterized in that the doping of the light diffusing particles of the flatness layer
Concentration is 2 to 45 weight percent.
8. colored filter as claimed in claim 6, which is characterized in that the partial size of the light diffusing particles is 0.1 to 6 micro-
Rice.
9. colored filter as claimed in claim 6, which is characterized in that the light diffusing particles include resin or inorganic material
Material.
10. colored filter as claimed in claim 9, which is characterized in that the resin includes polysulfones, polyimides, poly- third
Olefin(e) acid ester or combinations of the above.
11. colored filter as claimed in claim 9, which is characterized in that the inorganic material includes silica, titanium dioxide
Titanium or combinations of the above.
12. a kind of liquid crystal display device characterized by comprising
Colored filter as described in any one of claims 1 to 11；
Opposite substrate；And
The liquid crystal layer being set between the colored filter and the opposite substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076350.4A CN110082848A (en) | 2018-01-26 | 2018-01-26 | Colored filter and liquid crystal display device including colored filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810076350.4A CN110082848A (en) | 2018-01-26 | 2018-01-26 | Colored filter and liquid crystal display device including colored filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110082848A true CN110082848A (en) | 2019-08-02 |
Family
ID=67412254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810076350.4A Pending CN110082848A (en) | 2018-01-26 | 2018-01-26 | Colored filter and liquid crystal display device including colored filter |
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| CN110456556A (en) * | 2019-08-27 | 2019-11-15 | 厦门天马微电子有限公司 | A kind of color membrane substrates and display panel |
| CN111341816A (en) * | 2020-03-11 | 2020-06-26 | 武汉华星光电半导体显示技术有限公司 | Display panel, display panel manufacturing method and display device |
| CN111403459A (en) * | 2020-03-27 | 2020-07-10 | 京东方科技集团股份有限公司 | O L ED display panel, manufacturing method thereof and display device |
| CN113193014A (en) * | 2021-04-16 | 2021-07-30 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| WO2022002268A1 (en) * | 2020-07-03 | 2022-01-06 | 华为技术有限公司 | Display screen, display screen protective film and electronic device |
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Application publication date: 20190802 |